Hi Simon,
On Thu, Sep 27, 2018 at 9:43 PM Simon Glass <s...@chromium.org> wrote:
>
> On 23 September 2018 at 06:42, Bin Meng <bmeng...@gmail.com> wrote:
> > By default QEMU creates legacy PCI transport devices, but we can
> > ask QEMU to create non-legacy one if we pass additional device
> > property/value pairs in the command line:
> >
> > -device virtio-blk-pci,disable-legacy=true,disable-modern=false
> >
> > This adds a new driver driver to support non-legacy (modern) device
> > mode. Previous driver/file name is changed accordingly.
> >
> > Signed-off-by: Bin Meng <bmeng...@gmail.com>
> > ---
> >
> > drivers/virtio/Makefile | 2 +-
> > .../virtio/{virtio_pci.c => virtio_pci_legacy.c} | 6 +-
> > drivers/virtio/virtio_pci_modern.c | 612
> > +++++++++++++++++++++
> > 3 files changed, 616 insertions(+), 4 deletions(-)
> > rename drivers/virtio/{virtio_pci.c => virtio_pci_legacy.c} (98%)
> > create mode 100644 drivers/virtio/virtio_pci_modern.c
>
> Reviewed-by: Simon Glass <s...@chromium.org>
>
> Isn't there some common code between the two?
Unfortunately the legacy and modern PCI devices are quite different,
so we have to use 2 drivers which is how Linux does. For the
virtio-mmio driver, the difference are not that big so we can use one
driver to support both.
Regards,
Bin
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